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Finding the Fourth Proportional to 114,353.32, 157,884.58 and 71,398.20

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Solution

The fourth proportional to 114,353.32, 157,884.58 and 71,398.20 is: 98,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,353.32 : 157,884.58 = 71,398.20 : x
  2. Step 2: Convert to fraction form
    114,353.32/157,884.58 = 71,398.20/x
  3. Step 3: Cross multiply
    114,353.32x = 157,884.58 × 71,398.20
  4. Step 4: Simplify right side
    114,353.32x = 11,272,674,819.76
  5. Step 5: Solve for x
    x = 11,272,674,819.76/114,353.32
  6. Step 6: Final answer
    x = 98,577.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.